1901,18.8,18.9,19,19.1,18.8,18,17.3,17.4,17.6,18.5,18.4,18.5
1902,18.8,18.9,19,19.1,18.8,18,17.3,17.4,17.6,18.5,18.4,18.5
1903,18.8,18.9,19,19.1,18.8,18,17.3,17.4,17.6,18.5,18.4,18.5
1904,18.8,18.9,19,19.1,18.8,18,17.3,17.4,17.6,18.5,18.4,18.5
1905,18.8,18.9,19,19.1,18.8,18,17.3,17.4,17.6,18.5,18.4,18.5
1906,18.8,18.9,19,19.1,18.8,18,17.3,17.4,17.6,18.5,18.4,18.5
1907,18.8,18.9,19,19.1,18.8,18,17.3,17.4,17.6,18.5,18.4,18.5
1908,18.8,18.9,19,19.1,18.8,18,17.3,17.4,17.6,18.5,18.4,18.5
1909,18.8,18.9,19,19.1,18.8,18,17.3,17.4,17.6,18.5,18.4,18.5
1910,18.8,18.9,19.1,18.8,18.5,17.6,17,17,17.1,18.1,18.1,18.2
1911,18.7,18.8,18.7,18.8,18.5,17.9,17.2,17.3,17.4,18.4,18.4,18.6
1912,19.1,19.2,19.4,19.4,18.6,17.7,17.1,17.1,17.5,18.5,18.2,18.5
1913,19,18.9,19.1,19.1,18.7,17.8,17.3,17.5,17.6,18.8,18.7,18.6
1914,19.1,19.1,19.1,19.1,18.6,17.7,17.2,17.4,17.5,18.5,18.3,18.7
1915,19.1,19.4,19.2,19.3,19,18,17.3,17.5,17.6,18.6,18.3,18.5
1916,18.8,18.9,19.1,19.2,18.8,17.9,17.3,17.4,17.7,18.4,18.4,18.4
1917,18.7,18.8,18.9,18.9,18.6,17.9,17.3,17.2,17.4,18.3,18.3,18.3
1918,18.6,18.8,19.1,19,18.8,18,17.7,17.3,17.6,18.6,18.5,18.5
1919,19,19.1,19,19.2,19,17.7,17,17.2,17.5,18.3,18.3,18.3
1920,18.8,18.9,19.1,19,18.5,17.6,16.8,17.1,17.3,18.4,18.2,18.1
1921,18.7,18.8,18.9,19,18.7,17.9,17,17.3,17.5,18.5,18.3,18.5
1922,18.8,18.9,19,19.1,18.8,18,17.3,17.4,17.6,18.5,18.4,18.5
1923,18.5,18.9,19,18.9,18.5,18.1,16.8,17.3,17.7,18.3,18.4,18.3
1924,19.2,18.9,19.2,19.2,18.9,17.8,17.2,17.4,17.2,18.2,18.1,18.4
1925,18.4,18.4,18.5,18.9,18.8,17.8,17.2,17.2,17.6,18.6,18.3,18.5
1926,18.9,19,19.3,19.4,19,18.2,17.3,17.4,17.6,18.5,18.5,18.3
1927,18.6,18.8,19,19.1,18.8,18,17,17.5,17.6,18.4,18.5,18.7
1928,18.8,19,18.9,19.2,18.8,18,17.2,17.4,17.6,18.5,18.4,18.4
1929,18.9,19,18.9,19.2,18.7,17.9,17,17.4,17.7,18.5,18.5,18.6
1930,18.3,18.9,19,19.2,18.7,17.8,17.2,17.1,17.3,18.5,18.7,18.6
1931,18.9,19.1,19.3,19.3,19,18.3,17.4,17.3,17.7,18.4,18.3,18.7
1932,19.1,19.1,19,19.6,19,18.2,17.2,17.6,17.5,18.5,18.5,18.6
1933,19.3,19,19.1,19,18.9,18.1,17.5,17,17.4,18.1,18.2,18.3
1934,18.3,18.4,18.5,18.8,18.3,18.1,16.9,17.2,17.8,18.2,18.3,18.4
1935,18.6,18.6,19.1,18.8,18.6,18,17,17.3,17.1,18.5,18.3,18.6
1936,18.8,18.8,19.3,19,18.8,17.8,17,16.9,17.3,18.3,18.7,18.3
1937,18.6,18.8,19,18.7,18.4,18,17.3,17.4,17.5,18.2,18.3,18.3
1938,18.7,18.8,18.7,18.9,18.6,17.8,17.1,17.2,17.3,18.3,18.2,18.4
1939,18.2,18.7,18.7,18.6,18.4,17.9,17,17.3,17.4,18.2,18.4,18.5
1940,18.4,18.5,18.3,19,18.5,17.8,17.1,17.2,17.2,18.3,18.2,18.1
1941,18.4,18.8,19,18.9,18.8,17.8,17.1,17.4,17.5,19,19.1,19.2
1942,18.7,18.5,19,18.8,18.3,17.4,17,16.9,17.2,18.5,18.6,18.4
1943,20.4,18.7,20.7,20,18.5,17.7,18.4,16.9,17.7,19.1,18.5,19.5
1944,19.5,19.6,19.3,19.6,19.3,18.5,19.1,18.5,19,19.1,18.9,19.3
1945,19.6,19.9,19.7,18.7,18.2,18.2,17.2,18.2,18.8,19.5,19.3,18.9
1946,18.2,19.2,19.6,19.7,19.1,17.9,17.2,17.3,17.8,18.9,19.1,18.6
1947,18.7,18.6,18.9,18.8,18.5,17.9,17.1,17.4,17.6,18.3,18.4,18.3
1948,18.9,18.8,18.8,19.2,19.7,18.3,17.4,17.8,18,18.7,18.7,18.3
1949,19.3,19.5,19.9,18.4,18.5,17.6,16.6,17.1,16.8,17.8,18.3,18.1
1950,17.6,17.6,17.5,17.5,18.1,16.4,15.7,16,17.3,17.7,18.2,18
1951,17.7,18.1,18.4,18.2,18.7,18.6,17.8,17.3,17.5,18.3,18.2,18.2
1952,18,18.6,18.9,18.5,18.9,17.3,16.7,16.7,16.7,17.8,17.7,18.1
1953,17.8,18.2,18.2,18.3,18.3,17.3,15.9,17.8,16.6,17.8,18.3,17.7
1954,18.5,18.7,18.5,19,18.2,17.4,16.7,16.8,17.1,17.8,18.3,18.3
1955,18.1,18.5,18.5,18.1,18.1,17.3,16.6,16.4,16.8,18.1,17.8,17.7
1956,17.7,18.2,18.6,18.5,18,17.2,16.7,16.7,17,17.8,17.6,18.2
1957,18,18.1,18.4,18.4,19.4,18.4,18,17.8,18,18.7,18.2,18.9
1958,17.9,18.7,18.7,18.7,18.5,18,17,16.9,17.3,18.1,17.6,18.5
1959,19.1,17.8,18.7,18.8,18,17.5,16.8,17.3,16.9,17.9,18.1,18.2
1960,18.6,18.4,18.1,18.2,18,16.9,16.6,16.6,16.7,17.6,17.8,18.6
1961,17.9,18.1,18.1,18.6,19.2,17.7,17.6,17.4,17.6,18.4,19,18.6
1962,19.2,19.3,18.9,18.7,18.6,17.2,17.5,17.8,17.7,18.4,18.8,18.8
1963,18.7,18.4,18.3,18.6,18.5,18.2,17.6,17.7,17.6,18.1,18.5,18.8
1964,19.1,19.9,18.6,19,18.8,18.1,17.3,17.2,16.9,18.2,18.5,18.4
1965,18.9,18.1,18.3,18.7,18.3,16.8,16.9,16.4,16.9,18.3,17.7,18.1
1966,18.5,18.4,18.6,18.9,18.7,18,17.5,17.4,17.2,18.2,18,18.1
1967,18.6,18.4,18.8,18.7,18.4,17,16.6,16.3,16.8,17.5,17.9,18.1
1968,17.8,18.2,18.6,18.7,17.2,17.3,16.7,17.2,17.9,17.8,17.3,17.9
1969,18.3,18.8,19.1,19.7,19.1,18.2,16.3,16.7,17,17.8,17.8,17.8
1970,18.4,18.4,19.4,18.9,18.3,17.7,17.3,17,16.9,18.2,17.7,18.2
1971,18.5,18.3,18.2,18.2,17.9,17.6,17,17.3,17.4,17.8,17.7,18.2
1972,18.6,18.8,18.6,19.4,20,18.9,18.3,18.8,17.9,19.4,18.7,19.6
1973,18.7,18.8,19.1,19.1,18.4,18.7,16.4,16.6,17.8,17.9,17.5,17.1
1974,18.1,17.9,18.1,18.4,18.3,18.1,16.3,17.1,16.9,17.5,18,17.9
1975,17.8,18.4,18.8,18.9,18.2,17.4,16.3,16.9,17,17.9,17.6,17.8
1976,17.7,18.6,18.4,18.6,18.6,18.1,17.4,16.8,16.5,18,17.9,18.1
1977,18.2,18,18.5,18.5,18.2,17.7,17.7,17.5,17.4,18.8,19,19.1
1978,18.9,19.4,18.8,18.2,18.3,17.6,16.9,15.8,16.9,18.2,18.7,18.3
1979,18.7,18.4,19.2,18.6,18.4,17.3,16.9,17.1,17.4,18.1,18,17.6
1980,18.3,18.3,18.7,19.1,18.5,17.9,16.9,17,16.9,18.1,18.1,18.3
1981,19,19.4,19.9,19.7,19.6,18.7,17.2,17.7,17.6,19.2,18.9,19.3
1982,19,19.9,19.6,19.5,19.5,18.8,17.8,17.5,18.1,19.3,19.1,19.1
1983,20.2,20.7,20.3,20.2,19.5,18.5,18.2,17.8,17.4,18.3,18.8,18.8
1984,17.3,18.5,19.3,19.4,18.5,18.5,17.3,17.9,17.6,19.3,18.1,18.1
1985,18.6,18.3,19.1,19,18.4,18,16.7,17.3,17.8,18.4,17.9,18.2
1986,19.6,18.6,19.4,19.8,19.3,18,17,17.8,17.6,18.9,18.8,19
1987,19.5,19.5,19.5,19.6,18.7,18.3,18.3,18.2,18.3,19.1,19,19.4
1988,19.2,19.7,20,20,19.6,18.2,17.8,18,18.2,18.9,18.6,18.6
1989,18.5,18.3,19.7,19.5,18.8,18.7,17.3,18,18.2,19.3,19.3,18.6
1990,19.9,19.5,19.9,19.9,18.9,18.7,17.9,17.7,18.2,19.1,19.5,18.7
1991,18.8,19.2,19.7,19.9,19.3,19.2,18.2,16.6,17.6,18.2,18.7,18.8
1992,19.4,19.1,18.7,19.5,19.2,18.4,17.2,18.3,17.6,18.3,18.3,18.8
1993,18.8,18.2,18.5,18.7,18.7,18.7,17.7,17.3,17.4,18.6,18,18.6
1994,18.1,18.6,19,19.1,18.7,18.2,17.6,16.9,17.6,18.6,18.5,18.6
1995,19.3,19.1,18.8,18.4,18.9,18.9,18.2,18,17.8,18.6,18.4,18
1996,17.8,18.5,19.5,19.2,18.7,17.8,17.8,17.7,17.7,18.9,18.3,18.4
1997,18.1,19.1,19.8,19.6,19.4,18.9,17.7,17.7,18.7,19.9,18.9,19.3
1998,21,20.1,21,20.4,19.6,18.7,17.7,18.4,18.1,19.4,18.6,18.7
1999,18.2,18.3,19.1,18.6,18.3,18.3,17.2,17.3,17.1,18.2,18.4,17.7
2000,18,17.5,17.4,17.7,18.6,18.5,17.6,17.8,17.5,19.2,19,18.6
2001,18.9,19.3,18.2,18.8,17.9,16.6,16.7,17.1,16.8,18.1,18,18
2002,18.5,18.8,18.9,19.2,19.1,17.4,16.9,17.4,18,18.8,19.2,19.3
2003,19.1,19.2,19.5,18.8,18.8,17.8,17.3,16.8,17.6,19,18.1,18.3
2004,19.3,19.3,19.9,18.9,17.8,16.9,16.4,16.8,16.9,19.1,18.8,19
2005,19.3,19.3,19.2,19.2,18.3,17.6,16.9,16.9,16.8,18.2,17.3,17.3
2006,18.3,18.1,19.2,18.6,18.1,17.9,17.9,17.2,17.7,19,18.3,18.3
2007,19.1,19.2,19.1,19,18.1,16.8,16.6,16.2,16.6,17.3,17.4,17.3
2008,18.3,18.2,18.7,18.4,17.8,17.3,17.3,17.2,17.4,18.3,18,18.3
2009,18.4,18.6,18.5,20,19.1,18.9,18.7,18.3,18.6,19.1,19.1,18.8
